193 status_t String16::append(const char16_t* chrs, size_t otherLen) {  in append()  argument
196     if (myLen == 0) return setTo(chrs, otherLen);  in append()
198     if (otherLen == 0) return OK;  in append()
201     if (__builtin_add_overflow(size, otherLen, &size) ||  in append()
209     memcpy(str + myLen, chrs, otherLen * sizeof(char16_t));  in append()
210     str[myLen + otherLen] = 0;  in append()
219 status_t String16::insert(size_t pos, const char16_t* chrs, size_t otherLen) {  in insert()  argument
222     if (myLen == 0) return setTo(chrs, otherLen);  in insert()
224     if (otherLen == 0) return OK;  in insert()
229     if (__builtin_add_overflow(size, otherLen, &size) ||  in insert()
237     if (pos < myLen) memmove(str + pos + otherLen, str + pos, (myLen - pos) * sizeof(char16_t));  in insert()
238     memcpy(str + pos, chrs, otherLen * sizeof(char16_t));  in insert()
239     str[myLen + otherLen] = 0;  in insert()